Extra bedroom and en-suite extensions in Hetton-le-Hole
Homes in Hetton-le-Hole with a bit of space to the side or rear can often take an extra bedroom and en-suite extension. We'll tell you honestly whether yours can, and what approvals it needs.
What we'd confirm first for a project in Hetton-le-Hole.
- Postcode districts
- DH5
- County / area
- Tyne and Wear, England
- Price region
- North East England
- Guide price
- £50,500–£68,000 (£1,800–£2,430 per m²), plus £5,500–£11,000 for the en-suite
- Approval route
- It may be permitted development if it goes no more than 3 m beyond the original rear wall (counting any single-storey part) and stays 7 m from the rear boundary; otherwise it needs planning permission.
- Nearest towns
- Houghton-le-Spring (1.7 miles), Seaham (4.4 miles), Ryhope (4.9 miles)
- Distance to Newcastle upon Tyne
- about 12.6 miles
- First visit
- Free, no obligation
About an extra bedroom and en-suite extension
An extra bedroom and en-suite extension is a two-storey extension planned around a new double bedroom with its own shower room on the first floor, with a ground-floor room below. It is one of the most effective ways to add space for a growing family. Nationwide's 2025 research linked adding a double bedroom and bathroom to a three-bed, one-bathroom house with value gains of up to 24%.
Hetton-le-Hole sits about 12.6 miles from Newcastle upon Tyne. Closer to home, Houghton-le-Spring is 1.7 miles away and Seaham 4.4 miles.
What it costs in Hetton-le-Hole
Our guide for North East England is £1,800–£2,430 per m² including VAT. On a project with a 4 m × 3.5 m footprint on two floors (28 m² of new floor space), that puts an extra bedroom and en-suite extension in Hetton-le-Hole at roughly £50,500–£68,000 (plus £5,500–£11,000 for the en-suite). Keep a contingency of around 10% for things nobody can see until the ground is opened up.
| Spec | Per m² | A 4 m × 3.5 m footprint on two floors (28 m² of new floor space) |
|---|---|---|
| Essential | £1,660–£2,240 per m² | £46,500–£62,500 |
| Standard | £1,800–£2,430 per m² | £50,500–£68,000 |
| Premium | £2,160–£2,920 per m² | £60,500–£81,500 |
Planning and building regulations in Hetton-le-Hole
In England, an extra bedroom extension at the rear can be permitted development if it goes no more than 3 m beyond the original rear wall and stays 7 m from the rear boundary. Upper side windows, including en-suite windows, must be obscure-glazed and non-opening below 1.7 m. Side or deeper designs need planning permission, costing £548 (or £575 for applications made from 8 December 2026).
Approval in England: Householder planning application: £548 (or £575 for applications made from 8 December 2026). Lawful development certificate: £274 (about £288 for applications from 8 December 2026). Councils should decide householder applications within 8 weeks of validation.
Building regulations: Building regulations approval (full plans recommended) from the council or a registered building control approver, with a completion certificate at the end.
Design points for Hetton-le-Hole homes
Escape window and fire safety
A new first-floor bedroom needs an escape window with a clear opening of at least 0.33 m², at least 450 mm wide and high, and the bottom no more than 1,100 mm above the floor, unless there is a protected route to the stairs. We design the windows to meet this.
Planning the en-suite
An en-suite needs a route for the soil pipe to the drains, enough fall for waste water and an extract fan to the outside under Part F. Placing it over the ground-floor utility or near an existing drain keeps pipework short and hidden.
How we'd run your project
Look at the house
We start in Hetton-le-Hole with a free visit: measurements, photos, a look at the loft and drains, and a frank chat about budget.
Drawings and permission
Our designers produce plans and elevations, then we take care of planning or permitted development checks with the council covering Hetton-le-Hole.
Technical design
We prepare the building regulations drawings, structural calculations and specification so the build price can be fixed.
Build and sign-off
Vetted teams working under S&K build the extension, and we arrange the building control completion certificate at the end.
Questions about extra bedroom and en-suite extensions in Hetton-le-Hole
Who handles building regulations for a project in Hetton-le-Hole?
We handle it as part of the project. What's needed in England: building regulations approval (full plans recommended) from the council or a registered building control approver, with a completion certificate at the end. We prepare the drawings and the engineer's calculations, book the inspections and pass you the completion paperwork at the end.
Which postcodes do you cover around Hetton-le-Hole?
We cover Hetton-le-Hole (DH5) and nearby places including Houghton-le-Spring, Seaham and Ryhope, plus the rest of Tyne and Wear. The first site visit is free.
How much does an extra bedroom and en-suite extension cost in Hetton-le-Hole?
Our guide for North East England, which covers Hetton-le-Hole, is £1,800–£2,430 per m² including VAT. A typical project with a 4 m × 3.5 m footprint on two floors (28 m² of new floor space) comes to about £50,500–£68,000 (plus £5,500–£11,000 for the en-suite). Design and approval fees are extra, and we fix the build price in writing once the design is agreed.
What goes on the ground floor below a new bedroom?
Whatever suits you: a bigger kitchen, a family room, a study, a utility or a downstairs shower room. The ground floor usually costs about the same whatever it is used for, apart from kitchen units and bathroom fittings, which are priced separately.
How big should a new double bedroom be?
There is no legal minimum size for a bedroom in a house you own, so the test is whether it works. A comfortable double needs room for the bed with space to walk round it, wardrobes and a door that opens freely. We draw furniture on the plans so you can judge the space before anything is built.
Nearby
Nearby towns we cover for extra bedroom and en-suite extensions:
Other extensions in Hetton-le-Hole
All two-storey extension services in Hetton-le-Hole · Extra bedroom and en-suite extensions across Tyne and Wear
Send us your postcode and a few details. We'll get back to you to arrange a visit and talk through your options.